thumb|Frankie Gavin and the new De Dannan at the "Craiceann Bodhrán Festival" 2012 thumb|Platinum record awarded to De Dannan by the Irish Recorded Music Association for their 1999 album How the West
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fdb22ca2cf608c162524b3412791b5db06bd3977260acfae7fca3595a79a7d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94bd94be-046d-46b0-8261-64a352f8bfb6.json and https://artists.proofprofile.net/proofs/artist/94bd94be-046d-46b0-8261-64a352f8bfb6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Medley: Tom Billy's, Ryan's Jig, The Sandmount Reel, The Clogher Reel
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3769964a36bf30327b9d789c47b5f88f8721fdeda7c239ad72bde0159718fb12. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMV92200133.
Medley: Love Will Ye Marry Me, Byrne's Hornpipe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd951ce0a78432745ba13f0e66ca032b87427b7832adc941fd9a37c7571b938. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMV92200229.
The Cottage in the Grove, Sean Ryan's Reel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb07c7003e434b48f45e57908d646e8e51dd7eb88536e393d42f9f1255ada7c5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560555561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7888d4320096e234c20a7818bc13d8b63c8081acabfed51d5f1458a4238eee2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEFJB1300872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0529055dce0b780df8e414bb0691fe9bb8136fc46eb6b205a06f300dd58eac0. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQY51006363.
Kitty's Wedding / The Rambler - 2022 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bee82f704a30ecf4591bf465eb47f32bdc41463b68f3db6b7b650da41bcbbfd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USQY51006364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5cf49d99475e898386cdc7aa720b98f4a382da41bc8bd8435ec0a37e9fcb482. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAR8400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7abb119f8aa728d9bd3da36ab8185c0b3e27e03a5e3a5f261e4dfe5a3302e0. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:19:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAR8400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09557fe7662868f3a61f16d90bc35c66b6c2107347646f6466e82078efcd3e5. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAR8400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847f639c3c6b715e0c2af14e24b47c6103b4bc908e47d5f459403a54679a5066. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560555575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b20c298ebbd02dd7986d4826bb4e6412ab06e9b4b1fc0dee60edebb5af5ff50. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEFJB1300886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73baf3529774ffb9a9b8845dffebd700442cc49eab67ad11e7bb09484ce0935e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEFJB1300888.
Apples in Winter / Old Man Dillon / Trip to the Cottage
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f028f9db91e3205f5a8a41548fdabb196ccc07578445dd3e509f948f486aa46. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:53:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHFP1000076.
Flax in Bloom / Drunken Landlady / Devils of Dublin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09ac2d55da61646864be38bcbaf13ffa11c06a3d4232a9459fdc00e0724c02f4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHFP1000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad1adf9348b6094903867c360f20b81c2cc8a6957a9819d4bf58279b3982326. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAR8400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ec06a3a6fc5268d4536d33be34503d8f5b7a4bd579a6428857f757992bf36c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA560548103.
Essential Celtic Woman (The Irish Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b0074c70dad819e617153db3c771da17752525145acf5dbbe7dc6bd7c71f9b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/IEAAR8400019.